Centrifugal clarifier.



No. 675,300. a Patented May 28, IBM. F. H. RICHARDSON.

GENTRIFUGAL GLARIFIEB.

(Application filed Aug. 6, 1900.)

3 Sheets-Sheet l.

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No. 675,300. Patented May 28, I90l. F. H. RICHARDSON. GENTRIFUGAL OLABIFIER.

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P N .U S D an A H m R H F CENTBIFUGAL GLARIFIER.

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UNITED STATES PATENT FFQE.

FRANK HERBERT-RICHARDSON, OF PUEBLO, COLORADO.

GENTRIFUGAL CLARIFIER.

SPECIFICATION forming part of Letters Patent No. 675,300, dated May 28,- 1901.

Application filed August 6 1900. Serial No. 26,035. (No model.)

To to whom it may concern:

Be it known that I, FRANK HERBERT RICH- ARDSON, a citizen of the United States, and a resident of Pueblo, in the county of Pueblo and State of Colorado, have invented a new and Improved Olarifier, of which the following is a full, clear, and exact description.

This invention relates to improvements in machines for clarifyingor removing sediment from liquids, particularly water; and the object is to provide a machine for this purpose of simple construction and adapted by centrifugal action to thoroughly and quickly separate impurities from liquids.

I will describe a clarifier embodying my invention and then point out the novel features in the appended claims.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the figures.

Figure 1 is a partial section and partial elevation of a clarifier embodying my invention. Fig. 2 is a sectional elevation of a portion thereof. Fig. 3 is a plan view with a portion of the cone-cap removed. Fig. 4 is a section on the lines: or of Fig. 2, and Fig. 5 is a detail showing a mechanism for operating certain valves.

The clarifier comprises a shell or casing 1, which is closed at its lower portion by a plate 2, and at the upper portion it is provided with a ring-shaped plate 3, which forms the bottom wall of an upper chamber 4, the top wall of which is formed-by a cone-shaped cap 5. The plate 3 is provided with openings 6, which register with openings 7, formed in a ring 8, having an upwardly-extended annular flange 9, provided with perforations 10, through which liquid may discharge into small chambers 11, as will be hereinafter described. The ring 3 is connected at its outer edge between the peripheral flanges of the parts 1 and 5, and at its inner edge this ring 3 is connected to a casting 12, to which an inlet-pipe 13 and an outlet-pipe 14 are connected. The ends of the pipes 13 and 14 are separated one from the other by a plate 15, attached to the casting 12, and within the chamber 4 the outletpipe 14 is provided with ports 16, while the pipe 13 within the chamber surrounded by the casing l is provided with ports 17.

Arranged within the casing l and spaced therefrom is a cylinder 18. As here shown, this cylinder 18 is connected to the cylinder 1 by vertical partitions 19, which form the side walls of sediment-chambers 20, and these partitions 19 also form guides for verticallymovable gates or valves 21, which are provided with perforations 22, adapted at cer tain times to register with sediment-outlet perforations 23 through the cylinder 18. There may be as many sediment-chambers 20 as desired, and the chamber 11 communicates with the chambers 20 through ports 24, formed in the ring-plate 3.

Surrounding the rotary cylinder is a casing or shell 25, and the pipe 14 has a bearing in a casting 26, attached to the upper end of the casing 25, while the shaft 13 has a hearing in a stuffing-box 27, and it is also supported by a hub portion 28, which rotates in a cup-bearing 29, supported on the bottom wall 30 of the shell or casing 25, and this cup-bearing 29 is provided with an annular channel 31 to receive a lubricant, such as oil.

The rotary clarifier is prevented from swinging laterally by means of idler-rollers 32, arranged at suitable distances apart and each supported on a bracket 33, secured to the inner side of the shell 25, and each roller 32 bears against the upper flanged portion of the casing 1.

It is designed at certain times that the gates or valves 21 shall be moved upward to close the perforations 23 and then downward to open said perforations. As a means for trans ing these movements I employ at opposite sides of the machine gear-wheels 34 and 35, each engaging with a worm 36 on the hub 28. Extended around the hub 28, below the casing 1, is a vertically-movable ring 37. This ring is supported at opposite sides byarms 38, movable in guides 39, and these arms are adapted to be engaged at certain times by pins 40, carried by the gear-wheels 34 and 35. Each arm 38 is provided with a hook-shaped portion 41 for receiving the pins carried by the gear-wheels. Extended downward from each gate or valve 21 and through an opening in the bottom wall 2 of the shell 1 is a stem 42, provided with a curved shoe 43 on its lower end for engaging with the ring 37.

A series of web-plates 44 is arranged within the lower portion of the device or between the walls 2 and There are four of these plates shown radiating from the pipe 13. The inner edges of these plates, however, do not engage with said pipe. Neither do their outer edges engage with the perforated shell 18. They are secured in position by means of bolts or rivets passing through bottom flanges 45 and into the bottom 2 of the device. are designed to give the water a rotary motion as it enters the lower chamber.

The lower portion may be thoroughly braced by means of tie-rods 46 passing between and connecting the top and bottom plates 3 2, and to prevent the said rods from springing I incase them in sleeves 47, the ends of which engage, respectively, with the parts 2 and 3 of the machine.

In operation rotary motion is to be given to the clarifier by any desired means. I have here shown the pipe 14 as provided with a pulley -18 to receive a band driven from any desired source. As the clarifier rotates water fed into the pipe 13 will discharge outward through the pipe 1t, and the heavier particles or sediment will be carried outward by centrifugal action and discharge into the sediment-chambers 20, when the valves 21 are in position to open the ports or perforations 23. lhe greater body of practically pure water will be carried upward into the upper chamber through the openings 6 7, and any sediment that may possibly remain in said water will be thrown outward toward the periphery of the flange 9 and discharge through the perforations 10 into the chambers 11, from which the sediment will fall through the openings 24: into the chambers 20. As the pins on the wheels 3% and come into engagement with the devices 41 on the arms 38 the ring 37 will be raised, consequently simultaneously raising all the gates or valves, permitting the sediment to flow out through the opening around the valvestems 42. The clear water will be carried into the pipe 1% through the ports 16, so as to discharge at any desired point.

Having thus described my invention, I claim as new and desire to secure by Letters Patent- 1. A clarifier, comprising a rotary part divided into upper and lower chambers, communicating one with the other, a pipe for discharging water into the lower chamber, a pipe for receiving water from the upperchamher, a series of sediment-chambers arranged around the inner side of the lower chamber and provided with perforations, the said sediment-chambers communicating with said upper chamber, and gates or valves for opening These plates and closing said perforations, snbstantiallyas specified.

2. A clarifier, comprising a rotary cylinder or casing divided into an upper and a lower chamber, said chambers communicating through openings, a shell arranged around the inner side of the lower chamber and provided with perforations, vertical partitions between said shell and a wall of the lower chamber, forming side walls of sedimentchambers, perforated valve-plates for controlling openings through said shell, and means operated by a rotary movement of the clarifier for operating said valve-plates, substantially as specified.

3. A clarifier, comprising a rotary cylinder, divided into upper and lower chambers, vertical partitions in the lower chamber dividing it into a series of sections, a series of sediment-chambers arranged close together for receiving sediment from both upper and the lower chamber, actuated valves controlling ports leading into the sediment-chambers, a pipe for discharging liquid into the lower chamber, and a pipe for receiving liquid from the upper chamber, substantially as specified.

t. A clarifier, comprising a cylinder mounted to rotate, the said cylinder being divided into an upper and a lower chamber commu nicating one with the other, an upwardly-extended perforated flange in the upper chamber through which material discharges into a chamber at the outer side of the flange, sediment-chambers arranged around the inner side of the lower chamber and receiving material from the first-named chamber and also receiving material from said lower chamber, and automatically-actuated valves for controlling a communication with said sedimentchambers and said lower chamber, substantially as specified.

5. A clarifier, comprising a rotary cylinder, a series of sediment chambers arranged around the inner side thereof, valves for controlling eommunication between said sedi ment-chambers and the interior of said cylinder, a vertically-movable part for causing vertical movements of said valves, and gearwheels operated by a rotary motion of the clarifier for moving said movable part, substantially as specified.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

FRANK llERBE [t'l RICHARDSON.

Witnesses:

FRANK A. IIILEs, S. F. RENO. 

